Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:26 2013 Optimize a model with 140 rows, 1230 columns and 2640 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1220 columns, 2430 nonzeros Variable types: 1220 continuous, 0 integer (0 binary) Root relaxation: objective 2.387367e+04, 211 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23873.6700 0 1 - 23873.6700 - - 0s H 0 0 24205.049439 23873.6700 1.37% - 0s 0 2 23873.6700 0 1 24205.0494 23873.6700 1.37% - 0s * 7 3 4 23950.683256 23950.5713 0.00% 1.1 0s Explored 8 nodes (219 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.395068325571e+04, best bound 2.395057134567e+04, gap 0.0005%